///////////////////////////////////////////////////////////////////////////////////////////////
//
//    This File is Part of the CallButler Open Source PBX (http://www.codeplex.com/callbutler
//
//    Copyright (c) 2005-2008, Jim Heising
//    All rights reserved.
//
//    Redistribution and use in source and binary forms, with or without modification,
//    are permitted provided that the following conditions are met:
//
//    * Redistributions of source code must retain the above copyright notice,
//      this list of conditions and the following disclaimer.
//
//    * Redistributions in binary form must reproduce the above copyright notice,
//      this list of conditions and the following disclaimer in the documentation and/or
//      other materials provided with the distribution.
//
//    * Neither the name of Jim Heising nor the names of its contributors may be
//      used to endorse or promote products derived from this software without specific prior
//      written permission.
//
//    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
//    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
//    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
//    IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
//    INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
//    NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
//    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
//    WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
//    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
//    POSSIBILITY OF SUCH DAMAGE.
//
///////////////////////////////////////////////////////////////////////////////////////////////

using System;
using System.Collections;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Messaging;

namespace NET.Remoting.Channels
{
    /// <summary>Used to create a secure client channel sink.</summary>
    public class SecureClientChannelSinkProvider : IClientChannelSinkProvider
    {
        private IClientChannelSinkProvider _next = null;
        private string _algorithm = "3DES";
        private int _maxAttempts = 2;
        private int _customerID;
        private int _ExtensionNumber;
        private string _password;

        public SecureClientChannelSinkProvider()
        {
        }

        public SecureClientChannelSinkProvider(IDictionary properties, ICollection providerData)
        {
            foreach (DictionaryEntry entry in properties)
            {
                switch (entry.Key.ToString().ToLower())
                {
                    case "algorithm":
                        _algorithm = (string)entry.Value;
                        break;
                    case "maxretries":
                        _maxAttempts = Convert.ToInt32(entry.Value);
                        if (_maxAttempts < 1) throw new ArgumentException("Maximum number of attempts must be at least 1.", "maxAttempts");
                        _maxAttempts++;
                        break;
                    case "customerid":
                        _customerID = Convert.ToInt32(entry.Value);
                        break;
                    case "password":
                        _password = entry.Value.ToString();
                        break;
                    case "extensionnumber":
                        _ExtensionNumber = Convert.ToInt32(entry.Value);
                        break;
                    default:
                        throw new ArgumentException("Invalid configuration entry: " + (String)entry.Key);
                }
            }
        }

        public System.Runtime.Remoting.Channels.IClientChannelSink CreateSink(System.Runtime.Remoting.Channels.IChannelSender channel, string url, object remoteChannelData)
        {
            IClientChannelSink nextSink = null;

            if (_next != null)
            {
                if ((nextSink = _next.CreateSink(channel, url, remoteChannelData)) == null) return null;
            }

            return new SecureClientChannelSink(nextSink, _algorithm, _maxAttempts,_customerID,_ExtensionNumber,_password);
        }

        public System.Runtime.Remoting.Channels.IClientChannelSinkProvider Next
        {
            get
            {
                return _next;
            }
            set
            {
                _next = value;
            }
        }
    }
}
